Signal Probe - Source node does not exist

[tedh4ddv]

I've compiled my project.  I've reserved an available pin for Signal Probe output.  When I try to Add Signal Probe Pin, the selected node is not found.  I see an error: Source node does not exist.  Please specify a valid nod.  I know the node exists since I can analyze it's behavior in Signal Tap.  The node is inside the Remote Update IP Core. 

[sstrell]

The signal probably got optimized away or renamed.  You were able to tap it in Signal Tap because you can tap pre-synthesis nodes.  Signal Probe only can connect to post-fit nodes, so they must "survive" the compilation process.

Either that or because it's a signal inside an IP, which sometimes can prevent post-fit access.

When you use the Node Finder to find the signal, are you using the Signal Probe filter?

[ShengN_Intel]

Hi,

You may also try confirming whether that node exists or not by click View > Node Finder, and filter by Signal Tap: post-fitting to view the nodes you can route. Check this link https://www.intel.com/content/www/us/en/docs/programmable/683819/23-3/step-2-assign-nodes-to-pins.html

Thanks,

Best Regards,

Sheng

[tedh4ddv · Accepted solution]

I changed node filter to post fitting and was able to select the target node.  The design compiled and the node was accessible at the selected pin.  Thanks for the advice.